OC 0523

0.26 UTI

0.29

C_N

0.12

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 29

Core radius and density 3.2 [pc], 0.6 [pc^-2]

C3 classification AB

C_N 0.29 Poorly populated
C_dens 0.12 Very loose
C_C3 0.75 High quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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OC 0523 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

Distant Moderate extinction Massive Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.14 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.14 (50th percentile).

Data

🔍 Search references for OC 0523 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	144.695	-54.517	0.206	-4.384	3.189	–
Hunt & Reffert	2024	144.732	-54.514	0.202	-4.373	3.197	9.884
Cavallo et al.	2024	144.729	-54.524	0.204	–	–	–
Hunt & Reffert	2023	144.732	-54.514	0.202	-4.373	3.197	9.884
Hao et al.	2022	144.667	-54.508	0.185	-4.385	3.173	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	B_frac	BSS
UCC	99999–	4.18	2.95	2.57	74	0.195	2033	–	–
Hunt & Reffert	2024	4.18	2.95	2.57	74	–	2033⁽¹⁾	–	–
Cavallo et al.	2024	3.39	2.69	–	224	0.250	–	–	–
Hunt & Reffert	2023	4.18	2.95	2.57	74	–	–	–	–
Hao et al.	2022	–	3.22	–	16	0.140	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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